Home / 3,146.88-4,710.60-2,878.08

Finding the Fourth Proportional to 3,146.88, 4,710.60 and 2,878.08

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Solution

The fourth proportional to 3,146.88, 4,710.60 and 2,878.08 is: 4,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.88 : 4,710.60 = 2,878.08 : x
  2. Step 2: Convert to fraction form
    3,146.88/4,710.60 = 2,878.08/x
  3. Step 3: Cross multiply
    3,146.88x = 4,710.60 × 2,878.08
  4. Step 4: Simplify right side
    3,146.88x = 13,557,483.65
  5. Step 5: Solve for x
    x = 13,557,483.65/3,146.88
  6. Step 6: Final answer
    x = 4,308.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.